Improved brick-machine



` ing the sliding molds end pressiug-plungers.

dutrd tatc @anni demise..

JOHN KELLER., oE PADUGAH, KENTUCKY.

Letters Patent No. 106,490, dated August 16,1870.

IMPROVED BRICK-MACHINE.

The Schedule referred to in theseLetters Patent Aand making part of the sme.

To all whom 'it mayvconcern:

Be it known that.I, JOHN KELLER, of Paducah, county of McCracken, Stat-e of Kentucky, have invented certain uewand useful Improvements in Brick- Machines; and I do hereby declare the following to be a sufficiently full, clear, and exact description thereof to enable one skilled in the art to which my. invention appertains to make and use it, reference being had to the accompanying drawing making part of this specitication.

Nature and Objects of Invention.

My invention relates to the class of brick-machines which embody a revolving mold-table and clay-hopper for feeding the molds; and consists- First, in the combination with a horizontal revolving mold-table, ot' certain'devices for operating the corners on the brick, and relieve'it from contact with the mold, so that it can be thrown outby suitable deviccsf'or this purpose. Y l

Third, in the combination andarrangemeut of parts composing the entire machine.

l Description of the Accompanying Drawing. .Figure l is an elevation, partly iu section, of a machine embodying my iuveution.

Figure 2 is a top view of one side of the machine. Figure 3 is a plan with the top platenremoved, show- G'cneral Description.

Aris the frame of the machine, and

B, the revolying mold-table.

C is the hopper for receiving and feeding the clay to the molds.

The tableB is lrigidly secured or cast to thcbeveldriving wheel D, audit revolves upon the ceutraltixed shaft E, which is secured within the frame Ain the manuershown. Tile central shaft is necessarily lixed, in order 'that it may support cams which operate the pressing-plungers and sliding mold-boxes ofthe revolving table.

F is the pinion of the driving-shaft. It gears into and drives the bevel-wheel D ot' the mold-table.

The` plungers G, which force out the` bricks when the pressure is completed,are provided with rollers g, which rest upon the track- H of the frame The cavities l of the mold-table B are fitted with mold-boxes vJ ,which fornr the bottom and ends ofthe brick. l

The sides `of the boxes J extend suiciently outward to enter the small recesses fin the corners of V'the cavities I, iu order that the brick may be pele fectly formed on these outer corners.

After the brick has been so pressed, the, boxes are.

drawn inward, so as to relieve three sides of' the brick 'from contact with the mold, and provide for .its being easily thrown out by the pluugers G, which, in traveling round the curved track H, are elevated in the manuell necessary for forcing the brick outof the mold by means of the cam-shaped elevation or projection H' of the track. f

The boxes J are operated bythe cams L M, the cam"L serving to force the box outward by pressure upon the end of the box, and the cam M to force. it inward, the cam portion of the piece M projecting upward and engaging the projections m from the bot-tom 0f the box. lhese cams are both rigidly secured to the shaft E.

The pressiug-plungers N are iitted snugly between the sides of the boxes J, and provided with anti-friction rollers u, against which the cam-pressure is cx-y erted. Y

lhese pluugers are forced outward, to press the brick?` by the cam P, and returned inwardly by the downwardly-projecting cam-lip Q of the cam It, which engages the rollercd projections 1 of the pluugers.`

The cams P R are both rigidly secured tothe shaft E. The plungers N are kept in place -by the covering-plate O, through the slots cot' which the projec tions r pass. y

The boxes J rest upon the plate S, through the slots'b of which the rollered projections m pass.

The plungers G are fitted to'slide snugly up and down between the downwardly-projecting slide-brackets of the table B. g

The plate T, which is rigidly secured to the frame A, is provided to cover the top of the mold during the time the clay in the mold is receiving the pressure of the pluugers N, and thus prevents the escape of clay.

The hopper C can be fitted with any'pret'erred apparatus for pressing` the clay into the molds.

VIt will be seen that', owing to the provision 'of the sliding boxesJ, when the brick is ready to be removed from the mold, there is bit two faces of it in contact with the mold, and, as the pressing-plungers N are at this time at liberty t-o retreat from Contact with tbe brick, tbe brick is easil y removed by the action of tbe plimgers G.

The e'ect oi' the removal of tbe boxes by sliding inward while the bl'ek is held between tbe plungers N and mold-table B is, that tbe brick is perfectly formed zitxtbe corners, mid is smooth-faced on every side.

Claims.

I claim- 1. In tbe described.connection'vi'ith the revolving mold-table B, boppel` C, and platl T, tbe slidingr plungers N 0', cam, P, and cam Q R, Acombined and larranged substantially as described for tbe purpose specilied.

2. In tbe described connection with the mold-table B :md plungers N, tbe sliding boxes J, operating substantially in tbe manuel-.and for the purpose set forth` 3. The oombnzitiolrnnd arrangement of revolving mold-trible B, hopper C, plate T, plungers N, plungers G, 'Cain-track H H', sliding`boxes J, and cams L M P Q R, operating substantially in Atbe manner and for t-he purpose described.

vIn testimony of which invention I liereuntoset my hand. JOHN KELLER.

Witnesses:

FRANK MILLWARD, J. L. WARTMANN. 

